Directions : Read the following information carefully and answer the following…

Concept

In symbolic blood-relation problems, every link "P <symbol> Q" is read left-to-right as a single statement: P holds that relation to Q. Decode each symbol one at a time, then stitch the statements into a family tree. Track two things separately: the generation (parent / child / sibling level) and the gender, which is fixed by gendered relations such as son, daughter, father, mother, brother and sister.

Application

Decode the chain link by link:

1. A % C -> A is the father of C, so A is a parent of C.

2. C & D -> C is the brother of D, so C and D are siblings; therefore A is also a parent of D.

3. D ? E -> D is the mother of E, so D is a parent of E (and D is female).

4. E * F -> E is the sister of F, so E and F are siblings; therefore D is a parent of F as well.

5. F @ H -> F is the son of H, which fixes F as male.

Cross-check

Walk the line of descent from A down to F: A is a parent of D, and D is a parent of F. That is exactly two generations, so A is a grandparent of F. Since F is male (F is a son), F is the grandson of A. The links G & A (G is A's brother) and H @ R (H is the son of R) sit outside this line of descent and do not change the F-to-A relation.

Result: F is the grandson of A.